Originally Posted by
eurotrotter
I always assumed the answer was that it was because your guest also had to be flying on a oneworld carrier, but I thought I'd chance it in CPH today and see if my colleague who was flying SAS could get in as my guest to the lounge.
Maybe they were just being friendly. I've been let into the SAS lounge on multiple occasions whilst flying BA to have breakfast/ martinis with a SAS elite friend.